package de.danoeh.antennapod.fragment.preferences;

import android.app.Activity;
import android.content.res.Resources;
import android.os.Bundle;
import androidx.annotation.NonNull;
import androidx.collection.ArrayMap;
import androidx.preference.ListPreference;
import androidx.preference.Preference;
import androidx.preference.PreferenceFragmentCompat;
import de.danoeh.antennapod.R;
import de.danoeh.antennapod.activity.PreferenceActivity;
import de.danoeh.antennapod.event.UnreadItemsUpdateEvent;
import de.danoeh.antennapod.core.preferences.UsageStatistics;
import de.danoeh.antennapod.core.preferences.UserPreferences;
import de.danoeh.antennapod.dialog.SkipPreferenceDialog;
import de.danoeh.antennapod.dialog.VariableSpeedDialog;
import java.util.Map;
import org.greenrobot.eventbus.EventBus;

public class PlaybackPreferencesFragment extends PreferenceFragmentCompat {
    private static final String PREF_PLAYBACK_SPEED_LAUNCHER = "prefPlaybackSpeedLauncher";
    private static final String PREF_PLAYBACK_REWIND_DELTA_LAUNCHER = "prefPlaybackRewindDeltaLauncher";
    private static final String PREF_PLAYBACK_FAST_FORWARD_DELTA_LAUNCHER = "prefPlaybackFastForwardDeltaLauncher";
    private static final String PREF_PLAYBACK_PREFER_STREAMING = "prefStreamOverDownload";

    @Override
    public void onCreatePreferences(Bundle savedInstanceState, String rootKey) {
        addPreferencesFromResource(R.xml.preferences_playback);

        setupPlaybackScreen();
        buildSmartMarkAsPlayedPreference();
    }

    @Override
    public void onStart() {
        super.onStart();
        ((PreferenceActivity) getActivity()).getSupportActionBar().setTitle(R.string.playback_pref);
    }

    private void setupPlaybackScreen() {
        final Activity activity = getActivity();

        findPreference(PREF_PLAYBACK_SPEED_LAUNCHER).setOnPreferenceClickListener(preference -> {
            new VariableSpeedDialog().show(getChildFragmentManager(), null);
            return true;
        });
        findPreference(PREF_PLAYBACK_REWIND_DELTA_LAUNCHER).setOnPreferenceClickListener(preference -> {
            SkipPreferenceDialog.showSkipPreference(activity, SkipPreferenceDialog.SkipDirection.SKIP_REWIND, null);
            return true;
        });
        findPreference(PREF_PLAYBACK_FAST_FORWARD_DELTA_LAUNCHER).setOnPreferenceClickListener(preference -> {
            SkipPreferenceDialog.showSkipPreference(activity, SkipPreferenceDialog.SkipDirection.SKIP_FORWARD, null);
            return true;
        });
        findPreference(PREF_PLAYBACK_PREFER_STREAMING).setOnPreferenceChangeListener((preference, newValue) -> {
            // Update all visible lists to reflect new streaming action button
            EventBus.getDefault().post(new UnreadItemsUpdateEvent());
            // User consciously decided whether to prefer the streaming button, disable suggestion to change that
            UsageStatistics.doNotAskAgain(UsageStatistics.ACTION_STREAM);
            return true;
        });

        buildEnqueueLocationPreference();
    }

    private void buildEnqueueLocationPreference() {
        final Resources res = requireActivity().getResources();
        final Map<String, String> options = new ArrayMap<>();
        {
            String[] keys = res.getStringArray(R.array.enqueue_location_values);
            String[] values = res.getStringArray(R.array.enqueue_location_options);
            for (int i = 0; i < keys.length; i++) {
                options.put(keys[i], values[i]);
            }
        }

        ListPreference pref = requirePreference(UserPreferences.PREF_ENQUEUE_LOCATION);
        pref.setSummary(res.getString(R.string.pref_enqueue_location_sum, options.get(pref.getValue())));

        pref.setOnPreferenceChangeListener((preference, newValue) -> {
            if (!(newValue instanceof String)) {
                return false;
            }
            String newValStr = (String)newValue;
            pref.setSummary(res.getString(R.string.pref_enqueue_location_sum, options.get(newValStr)));
            return true;
        });
    }

    @NonNull
    private <T extends Preference> T requirePreference(@NonNull CharSequence key) {
        // Possibly put it to a common method in abstract base class
        T result = findPreference(key);
        if (result == null) {
            throw new IllegalArgumentException("Preference with key '" + key + "' is not found");

        }
        return result;
    }

    private void buildSmartMarkAsPlayedPreference() {
        final Resources res = getActivity().getResources();

        ListPreference pref = findPreference(UserPreferences.PREF_SMART_MARK_AS_PLAYED_SECS);
        String[] values = res.getStringArray(R.array.smart_mark_as_played_values);
        String[] entries = new String[values.length];
        for (int x = 0; x < values.length; x++) {
            if(x == 0) {
                entries[x] = res.getString(R.string.pref_smart_mark_as_played_disabled);
            } else {
                int v = Integer.parseInt(values[x]);
                if(v < 60) {
                    entries[x] = res.getQuantityString(R.plurals.time_seconds_quantified, v, v);
                } else {
                    v /= 60;
                    entries[x] = res.getQuantityString(R.plurals.time_minutes_quantified, v, v);
                }
            }
        }
        pref.setEntries(entries);
    }
}